Cable-grip



(No Model.) 3 SheetsSheet 1.

W. HADDOGK.

CABLE GRIP.

No. 399,034. Patented r. 5, 1889;

fittest. Ina lento?"- JM 2% 1m W :4. Firms. Photo-Lithograph Washington. In;

(No Model.) 3 Sheets-Sheet 2.

W. HADDOUK.

CABLE GRIP.

No. 399,034. Patented Mar. 5, 1889.

(No Model.) 3 Sheets-Sheet 3.

W. HADDOGK.

CABLE GRIP.

No. 3934. Pai e'nted Mar. 5, 1889 QR @Venfan' WWW Mam Nv PETERS-PhclwLllmg-nphn Wuhin mn, D. (1

UNITED STATES PATENT- @rricn.

\VORCESTER lIADDOCK, OF (IXPINNA'JL OHIO.

CABLE-GRIP.

SPECIFICATION forming part of Letters Patent No. 399,034, dated March 5, 1889.

Application file-z"- June 9,1888. Serial No. 276,599 (No model.)

structed as to be capable of operation from either end or from the center of the car, as desired. 7

In the drawings acconi 'ianying this application and forming a part thereof, Figure l is a view in side elevation of the grip and lifting device as preferably constructed, the opcrating mechanism being broken away. Fig. 2 is an end view of the device shown in Fig. 1. 3 is a view, partly in section, of the preferred form of mechanism for operating the grip and lifting device from the center of the car, showing in detail the portion broken away at top of Figs. 1 and Fig. i is avertica-l cross-section through the center of the grip and lifting device, showing the jaws of the grip open, and the sheave of the lifting device being lowered to pick up the cable. Fig. 5 is a view similar to Fig. 4, showing the grip closed and the sheave of the lifting de vice elevated, with the cable in an operative position in the jaws of the grip. Fig. 6 is a longitudinal section taken through a portion of a car provided with my improved grip and litter, the in echan ism shown at rightha-nd end of car illustrating how the grip and lifter may be operated from either end of the car, also showing a modification of the device for operating said grip and lifterfrom the center of the car. Fig. 7 is a vertical cross-section on an enlarged scale of a portion of the device shown at right hand in Fig. 6, showing the mechanism for operating the lifting device from either end of the car, the mechanism for operating the grip being removed. Fig. 8 is a view in side elevation on an enlarged scale of the preferred form of connection between the grip-rod and ratchet-segment shown at right hand in Fig. 6.

My improved grip, as preferably constructed, consists of two longitudinal jaws, A, of substantially a semicircular form in crossseotion, said jaws being pivoted to thehangen bar B through the lugs b b, as shown in Fig.

1. Each of the jaws A has a longitudinal groove, (1, in its inner face. When the jaws are closed, in the manner presently to be described, the grooves a in the jaws will encircle the cable, thus securely gripping the jaws to the cable. Each jaw is preferably provided with one or more tongues, 61., which project downward and outward, substantially as shown in Figs. at, and 5. These tongues serve to accurately guide the cable into the jaws of the grip when the former is being raised or elevated therein. This feature in the construction of the grip-jawsis a very advantageous and valuable one, for great inconvenience is expeiienced in elevating the cable into the jaws of the grip, owing to the oscillating tendency of the cable when in motion.

If desired, fouror more jawsinaybe hinged or pivoted to the hanger B, and each jaw be provided with the tongue a; but it is pre ferred to use but two jaws, as aforestated.

The hanger-bar B is upheld by the vertical bars (3, (four being shown,) which are bolted or riveted at top between the two cross-bars C, and are sutliciently far apart to admit of the grip-bars D and center lifting-bar, E, moving freely up and down between them. The two crossbars C are provided at each end with a suitable yoke, C of substantially the configuration shown, said yoke being rigidly connected to said cross-bars in anysuit able manner. In each yoke are pivoted two heavy rollers, C which rest upon and against the channel-bars C the latter being secured to the truck-bars C as shown in Fig.

6. The vertical bars C, cross-bars G, andv hanger B form a frame-work to guide the ri 3 and lifting bars.

The operation of the aws is accomplished by the following preferable mechanism, viz:

The two grip-bars D are secured together at top by the cross-bars D being bolted or riveted thereto. On each face of the grip bars D, and at the bottom thereof, is formed a wedge-shaped lug, D as shown by dotted lines in Figs. 4 and 5. Between suitable lugs, b, on the hanger B are pivoted the pawl-arms B, in such a manner that the top portion of said arms, carrying the rollers B will of their own weight bear against said wedge-shaped lugs D on the bars D. The pawl-arms B being thus pivoted to the hanger-bar B, (to which the grip-jaws are also pivoted,) and the rollers 13 of said arms bearing against the wedge-shaped lugs D on. the bars D, it

necessarily follows that when the bars I),

having the wedge-shaped lugs D are raised the upper portions of the pawl-arms B are forced outward and the lower portions correspondingly forced inward. The pawl-arms B are Sn pivoted with reference to the jaws A of the grip that so soon as the bars D are being raised andthe upper portion of said arms forced outward the lower end portion of said arms will begin to bear against the jaws of the grip to close them. It will be seen from the above description that the closing of the grip-jaws is accomplished by raising the bars D through the medium of thelugs D on said bars and the pawl-arms B.

The lowering of the grip-bars D causes the lower end of the pawl-arms B to be released from the jaws of the grip, leaving said jaws free to be forced apart by the cable, as shown in Fig. 4:. Any suitable mechanism may be employed for thus raising and lowering the grip-bars, one preferable form being shown in Fig. 3, and is as follows: Four fiatbars, F F, are connected to the cross-bars C, as shown at bottom of Fig. 3, and extend up through the bottom of the car, and are connected attop by a suitable sleeve, F The hand wheel F is secured to the screw-rod F which passes through and operates in the threaded guide-nut F to which the auxiliary grip-bars D D are secured. The rod- F is held in position in the sleeve F by suitable collars,ff. The auxiliary grip-bars D are secured at their lower ends to the cross-bars D, to which the grip-bars D are attached, as aforedescribed.

To close the jaws of the grip, the handwheel is rotated in a direction to cause the nut F to be raised on the screw-rod. The raising of this guide-nut causes the auxiliary bars D D to be raised, and with them the cross-bars D and grip-bars D, which motion accomplishes the closing of the griprjaws in the manner aforedescribed.

\Vhile the aforedescribed mechanism is preferred'for -operating the grip from the center of the car, I have shown a modification which maybe employed for such purpose, and is constructed and operates as follows: To the bottom of the car, near the center thereof, is secured the plate G, to which the semicircular ratchet G is secured. This plate also has a lug or lugs, g, to which the grip-lever G is pivoted. This lever is provided with the pawl g, adapted to engage the teeth of the ratchet G. The grip-lever extends down beneath the car-bottom, tothe lower end of which is pivoted the short arm g (shown in dotted lines in Fig. 6,) the other end of said arm being pivoted to the lever-arm 9 (also shown in dotted lines,) which is pivoted to the lug g on the cross-bars C. One end of said lever-arm is pivoted to the short link g", (shown also in dotted lines,) which latter is pivoted to the cross-bars D of the grip-bars.

\Vhen desired to close the jaws of the grip, the grip-lever (l is moved toward the left in Fig. 6, which movement throws the lower end of said lever to the right, which in turn gives the upper portion of the lever-arm g a downward circular motion. This downward circu larmotion of the upper portion of the leverarm gives the lower portion of said arm an upward circular motion. This lower portion of the lever-arm, being pivoted to the linkg, causes said link and the cross-bars D, to which it is attached, to ascend, which movement accomplishes the closing of the jaws in .-the manner aforedescrihed. The jaws of the grip are opened by a reverse motion of the lever and connecting mechanism. I

Thisgrip maybe operated from either end of the car, if desired,and when so desiredthe following device may be employed, viz: At

i each end of the car, beneath the platform,-is

secured a cast hanger, to which the segmentgear H is provided. To the lower end of the grip rod or shaft H is secured the worm-gear H which meshes with the segment H. This grip-rod H is provided witha suitable handwheel, H for rotating said rod. The segmeat-gear 1-1 is rigidly connected to the shaft h, to which the arm H is rigidly connected. In the lower end of crank H is rigidly connected the crank or wrist pin 71., which has a flanged head, (L2, as shown in Fig. 8. The connecting-rod His pivoted at one end to thelever-arm 9 before described, and at the other end is provided with the connection H, of a construction substantially as shown in Figs. 6 and 8. This connection H has a ver tical slot, h in its inner face for about onehalf its depth, which is dropped over the crank-pin 72., as shown in Fig. 8. To this connection H is pivoted the flat hook 71 which rests upon the said crank-pin between the outer surface of the connection and the inner face of flange 73, as shown. This form of hooked connection is very simple and effective for connecting the rod to the crankpin. anism for operating the grip from either end of the car is as follows: The rotation of the hand-wheel ll causes the shaft ll and the worm ll to rotate, which latter operates in the segment-gear H. The movement of this segment partially revolves the crank-arm H and pin 7L, to which the rod H is connected, which causes said rod to move backward and forward. This latter movement operates the lever-arm g aforedeseribed,which latter operates the grip-bars up and down, as hereinbefore stated.

Having described the preferable construction of the grip and modes of operating same, I will now describe the preferable forin'of device to be used in connection with thegrip The operation of this part of the mechfor elevating the cable into the jaws of the grip after the cable has for any reason been lowered.

The center lifting-bar, E, is movably connected and slides up and down between the two center stationary bars, C. In this bar E, near the bottom thereof, is made the opening E, as shown in Figs. 4 and 5, in which the upper angular portion of the lifting-arm E is secured by a suit-able pin-and-key connection, e. In this arm E near the center thereof, is made an elongated opening, 6', in which the cam E is pivoted, as shown. The sheave E, for lifting the cable, and on which the cable travels when the jaws are released therefrom, is pivoted to the lower end of said arm Any suitable form of sheave maybe employed for this purpose. Any suitable mechanism may be employed for operating said lifting device, three modes being shown in the drawings. The preferred mode of operating said cable-lifter is illustrated in Fig. 3, and is constructed as follows:

The center lifting-bar, E, passes up between the auxiliary grip-bars D as shown, and is pivoted at its upper end to one end of the link L, the other end of said link being pivoted to the crank L, which latter is operated by the lever L The spindle portion of this crank operates in a suitable sleeve, L made fast to the bars F and F. The forward-andbackward motion of lever L causes the lifting-bar E to move up and down through the medium of the crank-and-link connection. When the bar E is lowered, the arm IE attached thereto, as aforedescribed, is correspondingly raised and lowered, and with it the sheave E As the arm E is being lowered the cam E in said arm comes in contact with the hanger-bar B, which causes said cam and arm to be thrown away from the bar and the sheave from under the cable, as shown in Fig. i. This cam slides down the face of the bar B in a locked position (the elongated portion of said cam striking against the bottom of opening e) until the upper corner of said cam has passed said bar, when the sheave E is free to swing in under the cable to elevate it into the jaws of the grip. To elevate the cable the operating-lever L is operated in the proper direction, which elevates the bar E through the medium of the crank-and-link connection. The raising of this bar E, and with it the arm E causes the sheave E to as cend in a vertical line beneath the grip, thus elevating the cable into the jaws of the grip.

This vertical upward movement of the arm E accomplished without obstruction, as the cam E when it strikes the bar B is free to revolve, thus permitting the sheave to be elevated in a vertical line.

In Fig. (i I have shown another form of dcvice for operating said cable lifter from the center of the car, consisting of a crank-lever, M, pivoted to the lug on of plate G. This lever has a llHk-COHHGClElOH, M, between it and lifting-bar E, which is shown partially by dotted lines. In Fig. 6 the cable is shown elevated in an operative position. To lower the sheave E2 the crank-lever is elevated, and so soon as the pivotal point of connection between the lever and link getsbeyond the pivotal point on the lug m the bar E will drop of its own weight, thus lowering the sheave, as aforedescribed. The sheave, with the cable thereon, is elevated by a reverse motion of the lever, which is locked of its own weight and the weight of bar E so soon as the pivotal connection with link M is elevated and passed beyond the pivotal point on lug m, in which position the lifting device is locked in an elevated position. i This lifting device may also be operated from either end of the car, and when so desired I have provided the following device, viz: A suitable rope, O, is connected to the top of liftingbar E and passed over a pulley, O, and beneath a pulley, 0 substantially as shown in Fig. (5. These pulleys may be secured to the frame of the car in any suitable manner. The rope O is attached to and wound around a drum, 0, attached to the rod which rod is made to operate in the hollow shaft II, as shown in Figs. 6 and 7. A suitable handwheel, 0, is secured to said rod 0". The drum 0 has a toothed flange, P, secured to the bottom portion thereof, the teeth of which are adapted to lock in a suitable recess, 39, in the lever P. This lever is pivoted to asuitable hanger, P a spring, P being interposed be tween the outer end of said lever and the car. To the lug p is pivoted the foot-treadle P",

which is connected to the lever P by the link P In Fig. 6 this mechanism is shown with the cable elevated and the drum locked. To lower the sheave E the gripman places his foot on the treadle P", pressing the same down, which causes the lever P to descend, disengaging the flange of the drum therefrom, at which time the bar E and sheave E descend of their own weight. To elevate the sheave of the lifting device, the gripman depresses the treadle P turns the hand-wheel and with it the rod 0 and drum the revolution of said drum causing the rope O to wind around it, thus elevating the sheave E" in the manner aforedescribed. The cable being elevated into the jaws of the grip, the gripman releases the pressure of the treadle, which causes the lower end of lever P to ascend through the resiliency of spring P, the recess 1) in said lever engaging with one of the teeth on flange P, thus securely locking said flange and its drum from rotation.

The operation of the grip and cable-lifting device and the different appliances for operating same having been described in connection with the construction thereof, a gen eral description of the operation may be dispensed with, for the reason, as before stated, that any suitable mechanism may be employed for-operating said grip and cable-lifter.

The advantages of my improved grip consist in its simplicity of construction, efiectfor closing the jaws and suitable mechanism iveness in operation, and cheapness of manufacture, and, taken in connection with the cable-lifting device, afford a means for elevating and gripping the cable which is of very great advantage. The lifting device is of especial advantage when two lines of cable cross and where one cable must be dropped from the grip before crossing. IVhen a crossing is being approached, the lifting-sheave E is lowered sufficiently to throw the sheave from under the cable, when the jaws of the grip are opened, permitting the cable to drop onto the carrying-sheaves in the conduit. The cable being dropped, the lifting-sheave is raised, permitting it to pass over the crossing cable as the car passes over by its own mo- 5 mentum or otherwise. After the crossing is passed the sheave is again lowered beneath the cable, in which position it is elevated into the grip-jaws in an operative position.

WVhen desired to stop the car, the pressure on the grip-jaws is removed, permitting the cable to travel on the sheave between said jaws in position to be gripped when desired to start the can The cable-lifting device can be operated at any desired point on the line,which is of very great advantage.

Instead of having two jaws hinged or pivoted to the hanger-bar B, as shown, one of said jaws may be made rigid with the bar, the other jaw being hinged or pivoted, as shown, the gripping being accomplished by the one jaw and the wedge-shaped bars; but itis preferredto use the two pivoted jaws and the wedge-shaped bars, as shown.

\Vhile the various features of my improved grip and also of the lifting device are preferably employed together, the grip may be used independently of the lifter, and one or more of said features may be varied without departing from the main features of my invention.

\Vhat I claim as new, and desire to secure by Letters Patent, is

1. A cable-grip consisting of two hinged or pivoted jaws having outwardly-flared extensions for guiding the cable into said jaws, in combination with the pawl-arm mechanism for operating said pawl-arms, for the purposes set forth.

2. In combination with a cal. le-grip, a cahie-lifting device consisting of a suitable arm l having a sheave pivoted at its lower end por-' 1 through the medium of said wedge-shaped lugs and pawl-arms, substantially as set forth.

4:. In combination with a cable-grip constructed substantially as set forth, a cablelifting device consisting of a suitable sheave,

E, attached to an arm, as IE said arm being attached to the bar E in an opening, E, therein, and having a suitable cam, E pivoted:

near the center thereof, and suitable mechanism for raising and lowering said ban.

5. In combination with a cable-grip-constructed substantially as set forth, the connection between the car and grip, consisting of the yokes 0 attached to cross-bars O, and

having the rollers C -and C pivoted therein:

in a vertical and horizontal position, respectively, said rollers bearing upon and against, the top and sides of the channel-bars C made fast to the frame of the car, substantially as set forth.

6. The jaws A, having projections a, said jaws being pivoted or hinged to the hanger bar B, bars 0, cross-bars O, grip-bars D D,

having the wedge-shaped lugs D and pawlarms B, having the rollers B pivoted in one end thereof, in combination with lifting-bar E, arm E having the cam pivoted therein, and the sheave E and suitable mechanism for raising and lowering the grip-bars D D and lifting-bar E, substantially as set forth.

7. In combination with a cable-lifting device constructed substantially as set forth, the bar E, pivoted to link L, said link being pivoted at its other end to the crank-arm L, the latter having a suitable lever attached thereto, substantially as set forth.

WVORCESTER HADDOOK.

\Vitnesses:

J OSEPH W. XVEBER, WMqH. PORTER. 

